Life is the condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death.
Non-Life is all the rest.
Simple isn’t it except that each class encompasses many differing parts.
Simple isn’t it except that one minor planet energised by a minor star that is part of a minor galaxy contains so much that is life, a planet where I want life including that of my family to continue unabated. That planet is Planet Earth. There I find life very complicated.